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Lancaster �4 <br /> Laboratories Analysis Report <br /> 2425 New Holland Pike,PO Box 12425,Lancaster,PA 17605.2425•717-656-2300 Fax:717-656-2681•www.lancasterlabsxom <br /> Page 1 of 2 <br /> Quality Control Summary k <br /> Client Name: ChevronTexaco Group Number: 927293 <br /> Reported: 01/18/05 at 01:12 PM <br /> Matrix QC may not be reported if site-specific QC samples were not <br /> submitted. In these situations,to demonstrate precision and accuracy at <br /> a batch level,a LCS/LCSD was performed,unless otherwise specified in the <br /> method. <br /> Laboratory Compliance Quality Control <br /> Blank Blank Report LCS LCSD LCS/LCSD �! <br /> Analynis Name Result MDL units 9R6C $REC Limits RPD RPD Max 1 <br /> Batch number: 05006A51A Sample number(s} ; 4441898-4441900 ii 1 <br /> TPH-GRO - Waters N.D. 50- ug/l 106 108 70-130 2 30 JI <br /> Batch number: 050IIA07B Sample number(s) : 4441901 <br /> TPH-GRO - Waters N.D. 50. ug/l 94 95 70-130 1 a 30 I� <br /> Batch number: Z050171AA Sample number(s) : 4441896-4441901 <br /> EthanolN.D. 50. ug/l 92 46-145 <br /> Methyl Tertiary Butyl Ether N.D. 0.5 ug/l 100 77-127 <br /> di-Isopropyl ether N.D. 0.5 ug/l 105 67-130 <br /> Ethyl t-butyl ether N.D. 0.5 ug/l 101 74-120 <br /> t-Amyl methyl ether N.D. 0.5 ug/l 98 79-113 . <br /> t-Butyl alcohol N.D. 5. ug/l 102 57-141 <br /> Benzene N.D. 0.5 ug/1 104 85-117 <br /> 1,2-Dichloroethane N.D. 0.5 ug/l 96 77-132 <br /> Toluene N.D. 0.5 ug/l 105 85-115 <br /> 1,2-Dibromoethane N.D. 0.5 ug/l 103 81-114 <br /> Ethylbenzene N.D. 0.5 ug/l 104 82-119 <br /> Xylene (Total) N.D. 0.5 ug/l 101 83-113 <br /> Sample Matrix Quality Control a� <br /> MS MSA MS/MSD RPD BKG DQP DDP Dup RPD <br /> Analysis Name %RHC %REC Limits RPD MAX Conc Conc _ .RPD Max <br /> Batch number: 05006A51A Sample number(s) : 4441898-4441900 <br /> TPH-GRO - Waters 384* 232* 63-154 34* 30 JJJ <br /> r <br /> Batch number: 050IIA07B Sample number s} ; 4441901 <br /> TPH-GRO - Waters 106 63-154 <br /> Batch number; Z050171AA Sample number(s) ; 4441898-4441901 <br /> Ethanol 92 113 33-153 20 30 <br /> Methyl Tertiary Butyl Ether 99 97 69-134 1 30 <br /> di-Isopropyl ether 105 104 75-130 1 30 <br /> Ethyl t-butyl ether 100 99 78-119 1 30 <br /> t-Amyl methyl ether 97 95 77-117 1 30 <br /> t-Butyl alcohol 99 98 51-147 0 30 <br /> Benzene 104 105 83-128 1 30 <br /> 1,2-Dichloroethane 94 94 73-136 0 30 <br /> Toluene 103 107 83-127 3 30 <br /> 1,2-Dibromoethane 99 99 78-120 0 30 <br /> *-Outside of specification <br /> (1) The result for one or bath determinations was less than five times the LOQ. <br /> (2) The background result was more than four times the spike added. <br /> f `r <br /> F <br /> 1 -a <br />